<template>
  <div id="app">
    <router-view v-if="isRouterAlive" />
  </div>
</template>

<script>
export default {
  name: "App",
  provide() {
    //父组件中通过provide来提供变量，在子组件中通过inject来注入变量。
    return {
      reload: this.reload
    };
  },
  data() {
    return {
      isRouterAlive: true //控制视图是否显示的变量
    };
  },
  created() {
    
  },
  methods: {
    reload() {
      this.isRouterAlive = false; //先关闭，
      this.$nextTick(() => {
        this.isRouterAlive = true; //再打开
      });
    }
  }
};
</script>
<style lang="scss">
.flex-center {
  display: flex;
  justify-content: center;
  align-items: center;
}
.flex-btw {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.flex-middle {
  display: flex;
  align-items: center;
}
.flex-column {
  display: flex;
  flex-direction: column;
}
</style>
